Safety model

Pharos warns. It does not approve.

The app is educational decision support. It surfaces documented interaction warnings so a user can talk to a pharmacist or clinician. It does not diagnose, prescribe, dose, or tell a user to start or stop medicine.

Never says

“This is safe for you.”

No documented interaction found is not a medical clearance. It only means Pharos did not retrieve a matching DDInter pair.

Always says

Confirm with a professional

Warnings are framed as reasons to speak with a pharmacist or doctor, not as treatment instructions.

When unsure

Abstain, do not invent

If the drug cannot be resolved or the OCR confidence is too low, Pharos refuses to fabricate a conclusion.

Pharos shelf screen with Warfarin saved on-device.

Privacy boundary

The shelf belongs to the device.

  • The medication shelf is stored locally on the phone.
  • Inference does not rely on a remote medical API.
  • The app can explain the retrieved fact without exposing medication history to a web service.
  • Mesh delegation, when used, is explicit and bounded to the explanation step.

Safety wording

Designed to warn, not prescribe.

Pharos keeps the medical boundary visible in the UI: it surfaces documented interaction risk, then directs users to a pharmacist or doctor for decisions.

Educational information only. Pharos does not diagnose, dose, prescribe, or tell you to start or stop a medication. Always confirm decisions with a pharmacist or doctor.